• 대한전자공학회:학술대회논문집
• /
• 대한전자공학회 2008년도 하계종합학술대회
• /
• pp.749-750
• /
• 2008

It is often required to display 3-D data onto a 2-D screen and to examine and verify validity of data. LIDAR data is a good example. They represent 3-D spatial information in text format. However, it is very difficult to examine data on a 2-D screen. A 3-D data viewing system has been implemented and tested in order to solve the problem.

• 한국HCI학회:학술대회논문집
• /
• 한국HCI학회 2008년도 학술대회 1부
• /
• pp.224-229
• /
• 2008

본 논문에서는 테이블 탑 디스플레이의 사용에서 증강현실을 구현하기 위해 현실 세계에서의 객체를 통한 가상세계의 객체에 영향을 줄 수 있는 객체 컨트롤 입력장치를 제안한다. 이를 위해 본 논문에서는 테이블 탑 인터페이스의 LED 기반 객체 컨트롤 입력장치를 사용하여 네트워크상에서 상호 화면의 제어를 가능하게 하고 입력이 능동적이고 자연스럽도록 하였다. 객체 컨트롤 장치는 적외선 LED를 이용하여 테이블 탑 디스플레이에서 인식이 되도록 하였다. 테이블 탑에서 이와 같은 기능들의 구현을 본 논문에서는 에어하키 게임의 구현을 통해 보인다. 에어하키는 테이블 위에 퍽을 놓고 라켓으로 퍽을 쳐서 상대방의 골문에 넣어 점수를 얻는 게임이다. 본 논문에서 제안한 객체 컨트롤 장치를 이용함으로써 사용자는 증강현실에서 실제 객체의 이용으로 가상세계 객체에 영향을 줄 수 있는 보다 실감나는 인터페이스를 느낄 수 있다.

• 한국멀티미디어학회논문지
• /
• 제12권5호
• /
• pp.708-716
• /
• 2009

테이블 탑 디스플레이를 이용하여 만든 응용프로그램은 손을 사용함으로써 사용자에게 직관적인 인터페이스를 제공한다. 따라서 사용자는 테이블 탑 디스플레이에서 보여 지는 가상화면에서 실제 물체를 조정하는 듯한 현실감올 느낄 수 있다. 그러나 대부분의 테이블 탑 디스플레이 응용 증강현실 시스템은 시각적인 감각만을 충족시킨다는 제한사항을 가진다. 본 논문에서는 보다 현실감 있는 증강현실을 제공하기 위해 가상 객체에 충돌이 발생할 경우 객체 컨트롤 장치가 진통하게 함으로써 촉각 부분도 지원하는 다중 감각기반 인터페이스를 제안한다. 제안된 시스템은 에어하키 응용 구현을 통해 시각 및 청각적인 증강현실과 연동하여 가상환경의 충돌 정보를 무선통신으로 전송함으로써 촉각적인 증강현실을 반영함을 보인다. 본 연구에서는 시각지원과 함께 촉각지원을 추가함으로써 증강현실의 현실감을 증대시키고, 손 이외의 다른 장치를 사용하여 테이블 탑 디스플레이의 사용 환경을 확장시켜 보다 실감나는 인터페이스 환경을 제공한다.

• 한국콘텐츠학회논문지
• /
• 제16권1호
• /
• pp.515-520
• /
• 2016

입체영상 시스템은 최근 교육, 3D 영화, 의료 영상 등 다양한 분야에 응용되고 있으나 실용화함에 있어 해결해야할 문제점도 남아있다. 입체영상 디스플레이는 실용화 단계에서 대량의 영상 데이터를 처리해야 하고 실시간 디스플레이를 위해 고효율 비젼 시스템을 설계해야 한다. 입체영상 디스플레이를 위한 스테레오 시스템에서는 움직임 벡터, 변위 벡터 및 오차영상이 전송되며 스테레오 영상 시퀀스를 복원하여 디스플레이를 하게 된다. 그러므로 효율적인 입체영상시스템 설계를 위한 핵심요소는 스테레오 영상간의 효율적인 정합과 강건한 비젼 시스템에 있다. 본 논문에서는 광학 플랫폼 위에 회전이 가능한 회전단과 수평이동이 가능한 단을 설계하고 카메라를 이용하여 순차적으로 스테레오 영상을 취득하여 정합함으로써 정확한 3D 정보를 추출할 수 있는 고효율 비젼 시스템을 제안한다. 제안한 입체영상 시스템 실험결과 간략화된 시스템 구조 보정을 통해 적은 계산량으로 입체영상 디스플레이를 위한 스테레오 정합에러를 최소화할 수 있었다.

• 대한전기학회논문지:시스템및제어부문D
• /
• 제50권5호
• /
• pp.211-217
• /
• 2001

In this paper, we have developed the 6 DOF force display system to be based on the single PC. The system is composed of the force display device, the force reflecting rendering algorithm and the high-speed controller. The previous systems had a problem, that must adopt high performance workstation or 2-PC in order to control the graphics speedily and stably. In this paper, it is possible to improve the problem as to develop its exclusive controller and new rendering algorithm. The proposed new rendering algorithm is based on the Proxy algorithm, which can convert information of the position, the velocity, and the haptic information into the force-data. Especially, as to use the proxy algorithm, we can construct dynamical virtual-environment with the elasticity, the viscosity, the mass, and the friction force. As the result of the experiment, we found that our system has much superior characteristics than some other haptic interfaces, because it can control of 30,000 polygon model constructed virtual object with 1[kHz] haptic interrupt cycle and 20[Hz] graphic interrupt cycle in the single PC based system.

• KSBB Journal
• /
• 제26권3호
• /
• pp.243-247
• /
• 2011

Using Bacillus subtilis spore display system, with cotG as an anchoring motif, levansucrase from Zymomonas mobilis, was displayed on the outer surface of Bacillus subtilis spore. Flow cytometry of DB104 (pSDJH-cotG-levU) spore, proved the surface localization of CotG-LevU fusion protein on the spore compared to that of DB104. Enzymatic activity of DB104 (pSDJH-cotG-levU) spore showed more than 1.5 times higher levansucrase specific activity compared to that of the host spore, which is a remarkable increase of enzymatic activity considering the existence of sacA (sucrase) and sacB (levansucrase) in the Bacillus subtilis chromosome. The spore integrity, revealed by sporulation frequency test after heat and lysozyme treatment of spore, did not changed at all in spite of the CotG-LevU fusion protein incorporation into the spore coat layer during spore formation process. These data prove again that Bacillus subtilis spore could be considered as good live immobilization vehicle for efficient bioconversion process.

• 한국경영과학회:학술대회논문집
• /
• 대한산업공학회/한국경영과학회 1995년도 춘계공동학술대회논문집; 전남대학교; 28-29 Apr. 1995
• /
• pp.534-544
• /
• 1995

Many electronic products employ menu-driven interfaces for user-system dialogue. Unlike the software user interfaces, a small single-line display, such as a Liquid Crystal Display, is typically used to present menu items. Since the display can show only a single menu item at a time, more serious navigation problems are expected with single-line display menus(SDM). This study attempts to provide a set of unique guidelines for the design of the SDM based on empirical results. A human factors experiment was conducted to examine the effects of four design variables: menu structure, user experience, navigation aid, and number of targets. The usability of design alternatives was measured quantitatively in four different aspects, which were speed, accuracy, inefficiency of navigation, and subjective user preference. The analysis of variance was used to test the statistical effects of the design variables and their interaction effects. A set of design guidelines was drawn from the results which can be applied to the design of human-system interfaces of a wide variety of electronic consumer products using such displays. Since more generalized guidelines could be provided by constructing prediction models based on the empirical data, some powerful performance models are also required for the SDM. As a preliminary study, a survey was done on the performance models for ordinary computer menus.

• Journal of Information Display
• /
• 제4권4호
• /
• pp.4-7
• /
• 2003

The world largest 21.3" LTPS LCD has been successfully developed using SLS crystallization technology. Integration of gate circuit, transmission gate and level shifter was successfully performed in a large area display. Uniform and high performance of high quality grains of SLS technology make it possible to realize a uniform large size LTPS TFT-LCD with half the number of data driver IC's that is typically used in a-Si LCD. High aperture ratio of 65 % was achieved using an organic inter insulating method which lead to a high brightness of 500 cd/$cm^2$.

• 한국정보디스플레이학회:학술대회논문집
• /
• 한국정보디스플레이학회 2003년도 International Meeting on Information Display
• /
• pp.493-496
• /
• 2003

Transmittance and resistivity is investigated according to bending of ITO (indium tin oxide)film with four other multi-barrier film. Transmission data of ITO film with four ITO films showed there was about large 90% transmission above 550 nm wavelength at three multi-barrier structures. But, both -side hard coated structure showed relatively low 75% transmission above 550 nm wavelength. Also, resistivity change of four other multi-barrier film showed there was the lowest change at oneside hard coated structure. Subsequently, with result of resistivity change according to position, it was known the resistivity change of the center increased rapidly than that of the edge.

• Journal of Mechanical Science and Technology
• /
• 제20권7호
• /
• pp.1089-1097
• /
• 2006

The market demand of display devices is drastically increasing in the information technology age. The research on OLED (Organic Light Emitting Diodes) display with the luminescence in itself is being more paid attention than LCD (Liquid Crystal display) with the light source from the back. The vapor deposition process is most essential in manufacturing OLED display. The temperature distribution of the linear cell in this process is closely related to securing the uniformity of organic materials on the substrate. This work analyzed the temperature distribution depending on the intervals between the crucible and the heating band as well as on the amount of the heat flux from the heating band. Moreover, the roles of the water jacket and the configuration of the cover within the linear cell were examined through the temperature analysis for six configurations of the linear cell. Under the above temperature analysis, the variations in the intervals and the amount of the heat flux were considered to have an effect on building the uniform temperature distribution within the crucible. It is predicted that the water jacket and the adequate configuration of the cover will prevent the blowout and clogging phenomena, respectively. The results can be used as the fundamental data for designing the optimal linear cell.